MtGox has made several miscalculations.  The first is not having a good infrastructure in place or planned when the bit hit the fan for lack of a better pun.  The second was not following through on the Coinlab deal.  The third was not paying attention to paper work they submitted to Uncle Sam and ran afoul of our wonderful regulatory environment.  Other than that, I guess you can say they are behind the times on other crypto currencies but that is a contentious issue with some.